JJ Electronic Tubes

ELECTRONIC VALVE and TUBE COMPANY

PO Box 266, Rosewood, QLD. 4340 AUSTRALIA TEL: +61 (0)7 5467 9568 FAX: +61 (0)7 5467 9696

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In 1994, JJ Electronic started with the production of three types of tubes. Today, they offer an assortment of more than 20 types of tubes. In 1999, capacitors and tube amplifiers were added to the JJ Electronic manufacturing program.

In tube manufacturing, the fundamental requisite for the best production results is to maintain as high mechanical precision for assembly as possible. JJ Electronic uses assembly precision of no more than ± 0.02 mm. Every tube is electrically tested for all parameters which are the key to a flawless operation and a great sound. Specifically, these parameters include: leakage characteristics, internal vacuum level, cathode emission capability, filament voltage and current, anode current saturation level, microphony and others.

Every month, random samples are taken from the production line in order to perform a life time test of 5000 hours under nominal conditions or 1000 hours at maximum specified ratings.

updated July 28, 2007

6L6GC JJ

The new JJ 6L6GCs are as good or better than the GE 6L6GC grey plates in Fender amps they are awesome. These are as close to an NOS sound as you will get. Work perfect in all Fender and boutique amps that call for 6L6GC. Warm, sparkly great tone. Also dynamite for 6L6GC hi-fi amps.This tube has a deep, tight low end. The mids are full of complex harmonics. The highs are sweet and downright lush. When the JJ’s are biased up nice and warm they come incredibly close to that upper mid magic that Black Plate RCA’s have but the JJ’s out do the RCA’s especially in the low end. When over driven the JJ’s get very rich and thick. They don’t squash down and they have excellent definition and detail.

view spec sheet in .pdf

Prices in Australian Dollars

Quantity No GST GST included

Single 39.10 43.00

Matched pair 78.20 86.00

Matched Quartet 156.35 172.00

12DW7 JJ - see ECC832 JJ below

6V6S JJ

The JJ 6V6GTS is a killer 6V6 tube. Currently, this is the best sounding tube for Fender and boutique amps. Lots of gain and sweet break-up. They do clean with smooth clear high end. On the other end of the spectrum big fat bass notes that are well defined having a piano like quality are produced. Crank up the gain and you will get everything from a nice crunch to all out screaming distortion. And not just mush, but a very controllable, musical distortion.

view spec sheet in .pdf

Prices in Australian Dollars

Quantity No GST GST included

Single 28.20 31.00

Matched pair 56.40 62.00

Matched Quartet 112.80 124.00

300B JJ

The JJ 300B is considered one of the finest-sounding 300Bs available. Smooth and powerful, beautiful white ceramic base with gold pins, huge plate structure with 40 watts plate dissipation. Try these in your single-ended or PP 300B amps for an upgrade in sound!!!

view spec sheet in .pdf

Prices in Australian Dollars

Quantity No GST GST included

Single 230.00 253.00

Matched pair 460.00 506.00

E88CC JJ (6DJ8, 6922 ECC88)

The JJ 6922 is the best new 6922 and will sound great in Audio Research, Conrad Johnson, Sonic Frontiers, etc. Warmer and sweeter than the Sovtek 6922. Smooth mids and highs with great detail. Recommended replacement for 6922, 6DJ8 and ECC88, by those requiring a more detailed sound than tubes provided by most original equipment manufacturers.

view spec sheet in .pdf

Prices in Australian Dollars

Quantity No GST GST included

Single 24.55 27.00

ECC81 JJ (12AT7, E81CC)

Classic low gain preamp tube - Most often used as reverb drivers and/or phase inverters in older amps.

Considered a high quality, low noise replacement for any 12AT7 type tube. Low microphonics. A great reverb driver tube.

view spec sheet in .pdf

Prices in Australian Dollars

Quantity No GST GST included

Single 21.85 24.00

ECC82 JJ (12AU7, E82CC)

This is a great tube with a special gold plated grid. Wonderful in Hi-Fi and guitar amps. Very smooth and detailed with a great open sound.

view spec sheet in .pdf

Prices in Australian Dollars

Quantity No GST GST included

Single 21.85 24.00

ECC83S JJ (12AX7, 7025, E83CC)

The JJ 12AX7S is considered to be one of the best for guitar and hi fi applications. They simply sound better in most guitar amps than the other new 12AX7s. Most players prefer them for their warm sparkly sound. These tubes are immediately discernable from other 12AX7s. They have a construction that is similar to a frame-grid tube - similar to the Telefunken ECC803s. This construction makes them very rugged and reliable and the spiral filament makes tube hum non-existent.. This is one of the best new 12AX7s for any guitar amp. It is very musical - rich with great harmonics. An excellent tube in all Marshall amps in the three preamp positions. The JJ's break up much more smoothly, giving you a huge “sweet spot” and a smoother, singing tone. The ECC83S is great tube with a tight low end, a very natural and harmonically complex mid with VERY good definition and a sweet high end that is not brittle. These tubes have very low microphonics and are great in the gain stages of high gain amps like Marshalls, Mesa's and Peaveys.

Now available with gold pins!

view spec sheet in .pdf

Prices in Australian Dollars

Quantity No GST GST included

Single 21.85 24.00

Gold pins 30.00 33.00

ECC99 JJ

The JJ ECC99 was specially developed for use as a driver for the 300B valve. It offers very linear response with high clarity and detail. High gain/mu makes this the perfect partner for the 300B. It combines electrical characteristics similar to the 7119/E182CC (high transconductance and low plate resistance) with a pin-out the same as 12AU7/ECC82 or 12BH7. It can be used in place of the 12AU7 or 12BH7 in certain applications. view spec sheet in .pdf

Prices in Australian Dollars

Quantity No GST GST included

Single 35.45 39.00

ECC803-S JJ (12AX7, 7025, E83CC)

Classic long plate European design with special grid plated by gold to reduce microphonic interaction and noise. The JJ ECC803s is a hi-gain 12AX7 that has a spiral wound filament to reduce noise and hum. The construction is different from the JJ ECC83s in that the plates are more conventional, but have a special heat dissipating fin that serves to improve efficiency and gain. If you want that great JJ tone in a hi-gain package, then these are for you. For hi-gain amps, stick with the JJ ECC83S. view spec sheet in .pdf

Prices in Australian Dollars

Quantity No GST GST included

Single 30.90 34.00

ECC832 JJ (12DW7)

The JJ ECC832 is a suitable replacement for any 12DW7 or 7247 and is modelled on the frame-grid design of the ECC83S. One side has a gain factor of 100 - the other side has a gain factor of 20. You can think of it as 1/2 a 12AU7 and 1/2 a 12AX7. Try this tube for some interesting gain reduction effects on certain amps. It's an excellent option for old Ampeg SVT amps. It might be VERY interesting to harpers who want a lower gain tube in the first stage of an amp but don't need to drop two stages to such low gain as a 12AU7's. We're sure you can think of many other situations where this combo would be very useful, such as a reverb drive and recovery tube. view spec sheet in .pdf

Prices in Australian Dollars

Quantity No GST GST included

Single 20.00 22.00

E34L JJ (EL34, 6CA7)

The E34Ls are a higher power version (15% greater plate dissipation) of the EL34s and great for Marshalls, Dynacos and more! They are ideal for replacement and upgrades in vintage and modern power amps. They can handle over 600 V on the plate. Perfect for all EL34 applications. This one is the closest to the original Mullard sound and a bargain price. Get your set now and really enjoy the music!!! Gold plated control grid for improved fidelity. Special plate alloy improves plate dissipation as compared to the standard EL34 resulting in stable performance at higher power levels. This tube has about 20% more head room than the standard EL34 and it also has a deeper, tighter low end. It is also a bit punchier and more aggressive which makes it a great tube for Matchless, Bogner, Carvin, Peavey and all Marshall amps. view spec sheet in .pdf

Prices in Australian Dollars

Quantity No GST GST included

Single 36.35 40.00

Matched pair 72.70 80.00

Matched Quartet 145.40 160.00

EL84 JJ (6BQ5)

The JJ EL84s are as good as some of the early Mullard or Amperex types and perfect for guitar and hi-fi applications. These are currently the top-rated EL84 on the market. You will be surprised by how great these sound. Plus they are durable and last long. Work perfectly in Scott and Fisher integrated tube hi-fi amps as well as any EL84-based guitar amp. Get yours now and notice the difference.Gold plated control grid for improved fidelity and a plate dissipation of up to 12 watts. Very smooth with a sweet chime. Nice mids, sparkling highs and and tight punchy low end characterise this tube. Great replacements for VOX AC30's. The JJ EL84 seems to dominate the field in it's ability to withstand the abuse combo's dish out.

view spec sheet in.pdf

Prices in Australian Dollars

Quantity No GST GST included

Single 25.45 28.00

Matched pair 50.90 56.00

Matched Quartet 101.80 112.00

GZ34 JJ (5AR4)

Special plate alloy material and improved design for better performance, stability and life. This tube is as close as it gets the old Mullard GZ34.

view spec sheet in .pdf

Prices in Australian Dollars

Quantity No GST GST included

Single 30.00 33.00

KT77 JJ (EL34, 6CA7)

The long awaited for JJ / Tesla KT77 is here. A direct replacement for any EL34 / 6CA7, the JJ / Tesla KT77 has a lot of power and headroom but is surprisingly refined sounding. True beam tetrode design with gold-plated screen grids. These are THE BEST SOUNDING, MOST POWERFUL EL34 types on the market. They sound awesome. Get some now to transform your sound. Perfect for Marshall, Peavey, Carvin, VOX and boutique EL34 amps. Maximum crunch and superb tonal balance. Great dynamics and incredible soundstage. The most realistic replica of the famous Gold Lion Genalex KT77. view spec sheet in .pdf

Prices in Australian Dollars

Quantity No GST GST included

Single 40.00 44.00

Matched pair 83.65 92.00

Matched Quartet 167.25 184.00

KT88 JJ (6550)

The new and improved JJ KT88 is the best-sounding current production KT88 according to a recent VTV listening session. They com-pared them all and the JJ was almost as good as the original MO Valve KT88. Very stable bias, handles high voltage well and sounds fabulous! Also works in most 6550 applications.The JJ KT88 has been with us for many years. It has become one of the modern benchmarks for which all new KT88s are judged. It provides very lively detailed performance with a velvet smooth midrange. The JJ KT88 has a great reliability record and comes in matched pairs or quads. view spec sheet in .pdf

Prices in Australian Dollars

Quantity No GST GST included

Single 83.65 92.00

Matched pair 167.30 184.00

Matched Quartet 334.60 368.00